Prices for the same-named compound can range from under $30 to over $300 depending who you ask, which makes "price" a confusing thing to compare on its own. This guide covers what actually drives that spread, typical ranges for the most-searched compounds, and how to tell whether a cheap listing is genuinely good value or just cheap.
What actually drives the price
- Testing. A published Certificate of Analysis — purity by RP-HPLC and identity by LC-MS — costs real money per batch. Suppliers that skip it, or test only occasionally, can list a lower price because they're not paying for it. See how peptide purity is tested and how to read a CoA.
- Where the stock sits. Material drop-shipped from overseas after you order is cheaper to hold than stock already sitting in an Australian warehouse, tested and ready to dispatch same day. You're paying for the difference between a two-to-four-week wait with border risk, and next-business-day tracked post.
- Vial size and compound complexity. A 10mg single-agonist compound and a 20mg triple-agonist compound are not comparable manufacturing jobs — dose and molecular complexity both move the base cost.
- Genuine stock vs listed-but-unavailable. Some of the lowest listed prices online belong to items that are actually out of stock or take weeks to source — the real price only becomes clear at checkout.
Typical price ranges (single vials)
As a rough guide to what's normal in the Australian market for batch-tested, AU-held stock:
- Tissue-repair peptides (BPC-157, TB-500, KPV) — roughly $120–$135 per 10mg vial.
- Skin & cellular peptides (GHK-Cu) — roughly $80 for 50mg, up to $150 for 100mg.
- GLP-1 metabolic compounds — the widest spread of any category: Semaglutide (single agonist) from around $190–$240, Tirzepatide (dual agonist) from around $125–$250 depending on dose, and Retatrutide (triple agonist, the newest and most complex) from around $175–$300.
- Growth-hormone secretagogues (CJC-1295/Ipamorelin, Tesamorelin) — roughly $100–$325 depending on compound and dose.
- Nootropics (Semax, Selank) — roughly $80–$150.
These are single-vial prices before any bulk or bundle discount. Buying a named stack or bulk quantity brings the per-unit cost down further.
Why the cheapest listing isn't always the best value
A vial with no published CoA, sourced overseas, is not a cheaper version of the same product — it's a different, unverified product that happens to have the same name on the label. Purity alone isn't proof either: a highly pure sample of the wrong compound still returns a clean HPLC result, which is exactly why identity testing (LC-MS) matters as much as purity testing. When comparing two prices, the real question isn't "which is cheaper" but "am I actually comparing the same thing" — same testing standard, same stock location, same dispatch timeframe.
How to compare suppliers properly
Four questions cut through most of the noise:
- Is there a published Certificate of Analysis, and does its batch number match the vial you'd receive?
- Does testing cover identity (LC-MS) as well as purity (RP-HPLC)?
- Is stock genuinely held in Australia, or drop-shipped from overseas after you order?
- What's the actual landed cost once shipping and any minimum order requirements are included?
Our full Australian buyer's guide and how to choose a peptide supplier go deeper on each of these.
Where NextGen sits
Every product we sell is held in Australian stock, independently tested for both purity and identity, with the Certificate of Analysis published before you order — not on request. Same or next business day dispatch, tracked, from Melbourne. You can see every current price and published CoA in the shop and CoA Library.
All products are supplied strictly for laboratory and in-vitro research use only. Not for human or veterinary consumption. This article describes fields of scientific research and is not medical advice or a claim about effects in humans.